On recent versions of Windows, neither the telnet client nor the telnet service is installed by default, but they are still available as features. Years ago, they were used as a terminal service system to manage remote hosts. Currently, a lot of people are still using the telnet client to test if a TCP port … Continue reading Telnet is obsolete for testing ports→

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By 1996, the IEFT released RFC 1883 to define the IPv6 protocol. It has been designed to be the successor of IPv4, which was expected to arrive at exhaustion of available IP addresses between one or two decades later. Though techniques like NAT or private network addressing mitigate IPv4 exhaustion, they can only delay the … Continue reading How far is the international adoption of IPv6?→

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